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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 10 |
| 3 | 218 |
| 4 | 22906 |
| 5 | 10651322 |
| 6 | 20802031930 |
| 7 | 166437057472058 |
| 8 | 5390064106232598586 |
| 9 | 702352303362638758749242 |
| 10 | 367156773639729499052442504250 |
| 11 | 768856023700258389105237851742346298 |
| 12 | 6444908708706586437631037608905406860868666 |
[1,2,10,218,22906,10651322,20802031930, 166437057472058,5390064106232598586, 702352303362638758749242, 367156773639729499052442504250, 768856023700258389105237851742346298, 6444908708706586437631037608905406860868666] |